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section of tubing within which is placed the UNITED STATES PATENT O FCE.

JAMES M. LAING, or BAY CITY, MICHIGAN.

PUMP.

SPECIFICATION forming part of Letters jPatent No. 284,310, datedSeptember 4, 1883. Application filed February 23,1885. (No model.)

foal; whom, it mag/concern:

Beit known that I, JAMES M. LAING, of Bay I City, in the county of Bayand State of M ichigan, have invented new and useful Improvements inPumps; and I hereby declare that the following is a full, clear, andexact description thereof, referen ce being had to the accompanyingdrawings, which form a part of this specification. c This inventionrelates to certain new and useful improvements in the construction of Ipumps of that class which are designed for deep wells, such as areemployed insalt-wells; and the invention consists in the peculiarconstruc tion and application of the working-barrel withinthe tube, bymeans of which such working-barrel, with its various valves and plunger,may be simultaneously removed from the tubing forthe purposes of repairand inspection without the necessity of removing the tubing,

all as more fully hereinafterset forth.

. withdrawn.

7 Figure l is avertical section, showing the construction of pumps suchas are now employed in salt-wells. Fig. 2 is a vertical section, sh ow-.Fig. 3 is a modification of the same. Fig. 4 is an enlargedverticalsection of the shoe detached. Fig. 5 is a modificationof Fig. 4.

In the accompanying drawings, which form a part of this specification, Arepresents the tubing of. the well in Fig. 1, the working-bar- .rel Bforming aportion or section of such tub ing, which is supplied with avalve, 0, and a plunger and valve, D, this arrangement being theusualconstruction. When it is found that the pump is not properly performingits work and it isdesired to ascertainwhat portion needs repair, theplunger, with its valve, has to befirst If these parts are found to bein good order, they are disconnected from the pump-rod,which latter has.to be again inserted down the tubing and engage with the valve 0 at thebottom of the working-barrel, from which it is withdrawnand inspected.If it be found in good order, it is thenascertained that the difficultymust I lie in the working-barrel,

and inorder to effect any repair upon this the n entire tubing has to bewithdrawn from the well at considerableexpense and labor.

I In my construction, Fig. 2, I connect the nular flange, a.

are in place, is seated within the shoe F, and

to the upper end of this head G, I secure a piece of pipe or tubing, H,the upper end of which is provided with an inwardly-projecting an- Asthe working-barrel is of smaller diameter than the interior of thetubing, to prevent a swaying of the lower end of the working-barrel, Isecure the lower. end of that section of tubing with the suction-sectionimmediately below it by means of a coupling, I, which is provided with acentral inwardly projecting annular flange, b, the edge of which isslightly beveled, and into which the lower working-barrel n by means ofa shoe, wan the lower end of the section of tubing next end oftheworkingbarrel, when in place, snugly fits, thus preventing any vibrationor wabble to thelower end of the workingbarrel, in which is located thevalve J. I

K. represents the plunger which carries the valve L, and which isreciprocated by means of the pump-rod M. These last-described parts areconstructed 'as in the ordinary manner, with the exception that Iprovide the upper end of the plunger with a collar, N. r

. When from any cause this pump fails to perform its work and it isdesired to repair the same, the plunger is withdrawn until its collar Ncomes in contact with the flange a. A continned withdrawal now compelsthe plunger to draw up withit the pipe H, which is connected to the headG, which in turn is connected to the workingbarrel; and hence it willreadily be seen that by removing the plunger the working-barrel and itsvalve must necessarily follow. By this construction I am enabled toreadily get at and repair the working parts of a pump without beingcompelled to pull up orremove a thousand feet (more or less) of tubing,as is absolutelynecessary when any repairs are needed to be-made in thepumps of the ordinary construction.

In Fig. 3 I show a modification of the arrangement above described,wherein the shoe is placed at the bottom of the tubing, the lower end oftheworking-barrel being seated in such shoe. In this construction I doaway with the employment of the head G, while the coupling I, abovedescribed, is placed at the upper end of the working-barrel, and in thisconstruction the tubing H is connected directly to the upper end of theworking-barrel.

In Fig. 5 I show amodification of the shoe in Fig. 4, in which theinternal walls of the shoe are vertical instead of being bevel, butterminate in a bevel-seat, in which is inserted an annular leaden ring,upon which the head G seats itself.

What I claim as my invention is- 1. In a pump substantially asdescribed, and in combination with a stationary tubing, aworking-barrel, H, having an internal flange formed in one piecetherewith, a head, G, screwed to said barrel, and a plunger having anexternal flange, N, adapted to engage the flange a and lift the barrelout of the tubing, as specified. 2. In a pump, and in combination withthe tubing A, having shoe F, the working-barrel E, having head G, andthe coupling I, having flange b, all arranged for joint operation, asset forth. 3. In a pump, and in combination with the tubing A thereof,the working-barrel E, flanged pipe H, shoe F, and plunger K, havingcollar N, substantially as described.

JAS. M. LAING.

VVitnesSes H. S. SPRAGUE, E. W. ANDREWS.

